A character refers to "Paul Shaffer's limo driver." Paul Shaffer wrote the song "It's Raining Men" which features heavily in this episode.
When Guillermo suggests Nandor go talk to the bird that has come into his room, nandor replies "Matthew and I aren't speaking at the moment." This could be a reference to the Sandman, where the companion and advisor to Morpheus-- the lord of dreams-- is a Raven named Matthew.